I know the local dealer buys it by the 25ft roll...Don't know the part #. They told you can get it at Auto Zone which I did. Used it on the side markers and works OK.

 

Hmmm, Ill need to look at mine closer. I'm pretty sure mine is engraved right into the cover? 2010 FLHX

 

If youre going to pc the cover do not let the guy pc the inside, the stuff will start coming off inside and it is in the form of mushy sand which will waste your bearings.